Thermostat - Sierra

This product is currently out of stock. As inventories are updated it will again be available for purchase.
Thermostat - Sierra
Your Price: $14.31 (Out of stock)
Save: $2.52
(14% Off $16.83)
Part # 18-3527 ValueShip™ Eligible

Product Families

Johnson Thermostats
    Mallory and Sierra Thermostats for Force outboard engines.
    Replaces OEM part #
    • FORCE F664068
    Fits: 70hp(1991-1995), 75hp(1996-1999), 85hp(1989), 90hp(1991-1999), 150hp(1989-1994), 90 SportJet(1993-1995), 120 SportJet(1995-1998) and 85hp-125hp L-drive(1989-1994)
    Average Customer Review for Thermostat - Sierra
    Based On 4 Reviews | Write Review
    by Bill from Nevada, Texas on August 23, 2011
    good products, got here within days of order
    (1 of 1 people found this review helpful)
    Was this review helpful?
    Perfect Fit
    by Ken from Colorado Springs, Colorado on July 05, 2011
    Does the job
    Was this review helpful?
    As Advertised
    by Ken from Colorado Springs, Colorado on June 28, 2011
    Can't get too excited about a thermostat, but if your boat is exposed to a constantly open thermostat, then the boat is going to run cold.
    Was this review helpful?
    Thermostat-Sierra Part#18-3527
    by Frank from Novato, California on June 27, 2011
    I am happy to just be able to find parts that fit my 32 year old outboard.Thank you iboats and thank you Sierra.
    Was this review helpful?
    Ask a question for
    Question & Answer Guidelines
    This product ships in 1 business day.

    Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
    * Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
    Standard Shipping Policies
    Do you need Professional Installation? has teamed with a national network of independent installers that are ready to handle your installation needs.
    Find your local Amtech dealer: